Cushion connection for vehicle construction



Nov. 16g' w26.w

1,607,164 A. H. LEIPERT'ET AL v CUSHION CONNECTION FOR VEHICLE CONSTRUCTION Filed Jan. 29, 1925 50 5 .the rollers;1

Patented Nov. 16, 1926.7

AUGUST H. LEIYPERT AND GUsTAvns HAAG, 'on NEW YORK, N. Y., AssIeNoEs Torn-Y TERNATIONAL ivro'ronv COMPANY, OE NEW Yon-K, NY., -'A' CORPORATION or DELA- WARE.

CUSHION4 CONNECTION Eon VEHICLE CoNsTEICTION.l

Application 1ed January 29, y1925. `*Serial No. 5,444.

`In the copending application Ser..N'o. 715,387, 'filed May 23, 1924, bythe applicants, there is disclosed a Ayielding nonrmetallic vconnection and support between'the end 5 of a leaf spring and theframeof a -lnotor vehicle. in which the end ofthe spring is retained between bodies of curvilinear form carried with the 4frame With; capacity for relative movement therebetween. The presf ent inventionhas to do Withi'improvements in spring connections of the same general nature. Tn some situations the centers of rot-ation of the curvilinear bodies upon the respective upper and lower sides ofthe spring end have a vtendency tobecome displaced' withv respect .5to lone another so that they do not lie in the v.same vertical plane with :thel result that this'. .lisposition affects adversely the eectivelengthof the- 720 spring. It is an object of the present .in

vention to provide a construction which shall have a'tendency to maintain the centers vof rotation of the curvedfbodie's substantially always' in the lsame vertical' pla-ne. f To this `end rthev seatsfor V.the ycurved bodies are curved, :Preferably *the curved elements of the seats extend in the longitudinal direction 4. Ofthespring. In the preferred emjbodimentof the 'invention the curved bodies take Athe form of cylindrical rollers formed of yielding noinnetallic n. material Which, to lovercome sidefsway, are` Vformed Vwith grooved surfaces which co-operate VWithcorf f' vrespondingly grooved' surfaces formed` onk .the seats. Therollers areldisposeol between the .seats on ,the end of the `spring under compression whereby. theirl strength, resiliency and Wearing qualities are improved. Other objects and advantages ofthe inven- 40 tion Will be more apparent fromfthe follovving detailed description of the inventionil- Y lustrated in the accompanyingdravvngs, in

which: n Y v.

Figure 1 is a` viewin side elevationand partly inv section showing the non-metallic connection accordingtofthe :present invenf tion. 1. A f f `Figure 2 is `a; vievv tof-Figure l showing a variation in the --relative size gof Eiga-re sis aptransv'f'sjfvrtiel "Stendal -vieW taken in the plane indicatedbyv the line ffinkligure 2 and looking'in thedirection ofthe arrows and showing' the co#V operating grooved surfaces onthe rollers' "f andseatsp iv, .A ln the preferred embodiment of theinvention illustrated in Figurezl a housing a is illustrated as secured to the chassis frame, a fragmentary portion of lWhich'is indicated at' b." Housing@` is formed with an opening` a throughrfvvhich the end"` of thel vehicle' spring c extends. 4'Between.the end of Vthe spring c and the upper and lovverwalls of the housing aY aredisp-osed curvedbodies d, e., of -yielding non-metallic material. `So much of the invention as has ust been described iscovered'broadly in the co-pending g teatapplication.- For convenience in assembly,

housing a may be formed ofarnain portion and a cap portion a2, the lineof 1separation of the tWo parts being substantially in the transversek horizontal plane Vof the spring C nnder normal. conditions. be secured to the housing in Vany-convenient manner as by the vbolts a3. l, Y Y

Insome situations it may be found advis- The vcap L2-may able to maintain the centersof rotationjof the curved bodiesl and 'e in. substantially l y Y the sanne transverse vertical plane.

end the co-.operating seats for ythe said bodies To this Z rand e inthe housing-.and on the spring-end arecurvilinearinform,fthe curved elements housing', are'indicatedin `lfigurefl at a4 and thefend of the spring :c havebeen designated VJof the seats extendinginthe longitudinal .directionof they spring. ,The seats' in the .bv the reference characters fr* and cirespecf' I tively. The curved bodies cl and e in the "K preferred embodiment tairel the forni of cylf indersof the same diametenj-'ItfWill-thusV` beseen thathas theiend o f the spring tends .to travel: Vinvvardl'y or outwardly vvithin the 'housing 'under,varyingfdegrees yof spring elongation vdueto changeinload or inequalitiesin lthe vroadbed,@the rollers d and e will have ya constanttendency to turn With the niovenfient `of' the spring so Ythat their kaxes .remain v always fl'inllthe: ,saine ver-tical transf' verse plane. f Thus theefl'ectivelength vof the y.. 'springe may be variedby Ythe 'movementof f V llersvresult g ,frein increased f load, u

'mannen Whiteman te rtadimiiapipreciated those.'skilledAY in .the -art.` Upon assembly Vtloe desired degree offcompression jected.

the; seats an roller D, Figure 2, that Vroller Ymay be made greater in diameteil than the roller E.

In actual practice vitw'vill found that,A there is a tendency for relative moven'ientfV transversely between the spring and chassis vframe, such as side-sway.V Such side-sway is objectionable .and as a means orfovercoming the saine, the Yseats a4, c, c5 and a5 may be formed with a plurality or longitudinally extending groov,es,'the deepest portions ot' which are in register and the .rollerstheinf selves may also be vformed with vco-operating raised portions Z to enter the grooyes.

As the rollers are under compression when disposedbetween the seats their Yaxial length will be increased proportionately to the degree of compression to which'they are sub- In consequence the raised portions d" are moulded with a width less 'than the widthl or' the grooves a and c and the grooves are spaced from one another slightly greater than the distance between the raised portions d. VThen the cylinders Vare placed under compressionthe increase in axial" klength causes a'bulge (Z2 to be formed at either end of the cylinder which seri/esas a cushion, not in contact ordinarily with thewallsV of the housing a but so disposed ras to serve as buffers or cushioning Velements under conditions of violent sidesway.- i

The Vyielding non-metallic material of which the rollers'are composed Apreferably takes the form of rubber as the 'strengtli, resiliency and life of this material is substantially increased whenso retained. Y

Various modifications may be made in the application of the co-pending parts as V-well as the Yrelative sizes ofV the rollers Vand the radius of curvature ory the seats and no limitation is intended by the .tore going description or appended drawings except as indicated in the accompanying claims. Y y K Y f Wl'lat'l clain'i is; Y Y v l. Inf'a whollynon-metallic mechanical connection and support between the spring' and framey otaV Vmotor vehicle, opposed .curvilinear seats carried ywith the `fra-me andbe'tween whichthe end of the spring extends, .the cu'rv'edportions having their longitudinal axes extending in the 4direction 'of thefveliicle 'iiame opposed curvilinear seats carried with tlieend ofthe spring and YCQ @peratingywith the seats carried `with nthe frame', and curved bodies 'et yielding non'- linetallic Vrifiaterial curved toen-operate with respectively.

d disposed Ybetween the'V -seats y 2. In a wholly non-metallic mechanical Aconnection and support between the spring and raineota inotor vehicle, lop]' Jose d seats Ymounted on the frame, co-operating seatsA carried by the spring and non-metallic .yielding roll elcnientsdisposed between the respective seats, a plurality lof said seats being curved so that longitudinal movement oit the v,spring f vill cause the non-metallic elements to be compressed as they roll to accommodate such movements.

v3. In a wholly non-metallic mechanical connection and support between 'the spring and traine of a motor vehicle, a housing carriedwith'the frame and having an open side into which the-,end 'of the spring extends, opposed curvilinear seats iorinedV inV the housing,the Vaxes of the .curvilinear portions being curvilinear, opposed 'curvi llinear lseats carried with the end ot the spring and co-oper'ating'with the seats in the housing, and bodies of yieldingnonmetallic material curved to co-operate with the seats and disposed between the seats respectively.

l. In a' wholly non-inetallic mechanical connection and supportbetweenl the spring and'fraine of a motorjvehicle, aliousing carried with thera-me and having an open side into which the end oit' the spring extends, opposed curvilinear seats formed in the housing, opposed curvilinear seats cairried with the end of the springandy co` operating with the? seats in the housing,`the axes `of the curvilinear elements of said seats extending in the longitudinal dii-ecition of the frame, and cylinders of yielding non-metallic material ldisposed between lthe seats respectively.' v 4 5. In a wholly non-metallic.mechanical connection andsupport between the spring and traine of a motor vehicle opposedeur'- Av ilinear seatscarried with the frame and between wliich the end oifthe spring: extends,

vand frame eta motor vehicle, a 'liousingV carried withvr the traine and having an open Aside into'which the end of the .spring -ex-Y tends, opposed curvilinear seatsorined 'in the housing,"opposed curvilinear "seats car- Hried with the endv of the Aspring and cooper ating withthe seatsv inthe housing,sa-id` 'seats beingfrespectively formed `with-"longitudinal grooves cylinders of yieldingA non# d metallic material disposed between theV seats respectively, and formed with raised portions cti-operating with the grooves in the 7. ln a wholly iioii-iiietallic mechanical connection and support betweenthe spring .and frame ot'l a inotor vehicle, a l'iousing tions cli-'operating with the grooves vin kthe Vseats,'the grooves of said seats being noi'- vmally spaced` a greater distance from one anotherv than vthe normal spacing of theA raised portions of the cylinders.

8. As an article of manufacture, a yielding non-metallic element adapted to be disposed'between the end of a spring and the frame in a motor vehicle, comprising a cylinder of yielding` non-metallic -n'iaterial Y 'formed with a circuinterentially grooved outer surface.

9. In a wholly non-metallic mechanical o' connection and support between two relatively movable parts, a non-metallic yieldroll elementy disposed between the parts and rolling with respect to each when transmitting varying orces between .the supporting and supported members, v'the cointactiingV part of the element comprising poi'-V tions,- the axes of the configurations lot which lie at an angle to the" vertical plane through the rolling axis ot the element, and

seats on the respective parts co-operating with the surface'ol the rolling element. Y

im' y 10. In a wholly non-metallic mechanical`l connection and support between the? spring and Vtraine oi la inotorvehicle, opposed seats carried with the trame and between which Vthe end of the spring extends, seats carried by the Vend of the spring and co-operating with'the first namedseats, and non-metallic yielding roll eleinents'disposed between the seats and rolling witlr respect tothe-surfaces of the seats when transmitting vary-V ingforces therebetween, the contacting part of the rolls comprising portions, the axes 'of the conigurationsof vwhich lie at an angle to the vertical plane Athrough the rolling axis of lthe Vrespective elements the Ysurfaces of the seats co-operating with the .surfaces oi' the rolls. o 'o his speciticationsigned this 24th day ot January, A. D. 1925. z

. AUGUST H. LEIPERT.

GUSTAVUS HAAG. 

